2145521302202 has 8 divisors (see below), whose sum is σ = 3221242657536. Its totient is φ = 1071773749692.

The previous prime is 2145521302189. The next prime is 2145521302207. The reversal of 2145521302202 is 2022031255412.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2145521302207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 493447988 + ... + 493452335.

It is an arithmetic number, because the mean of its divisors is an integer number (402655332192).

Almost surely, 2^{2145521302202} is an apocalyptic number.

2145521302202 is a deficient number, since it is larger than the sum of its proper divisors (1075721355334).

2145521302202 is a wasteful number, since it uses less digits than its factorization.

2145521302202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986901412.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 2145521302202 its reverse (2022031255412), we get a palindrome (4167552557614).

The spelling of 2145521302202 in words is "two trillion, one hundred forty-five billion, five hundred twenty-one million, three hundred two thousand, two hundred two".